rtl-sdr-blog/cmake/Modules/FindLibUSB.cmake
Steve Markgraf a2bc5b5117 lib/cmake: check for libusb_handle_events_timeout_completed()
libusb < 1.0.9 doesn't have libusb_handle_events_timeout_completed(),
but libusb <= 1.0.8 doesn't have version.h, so we need to check
for the function.

The cmake-code was borrowed from UHD, which also checks
for libusb_error_name(), we add that as well since it might come
handy later on.

Signed-off-by: Steve Markgraf <steve@steve-m.de>
2014-01-24 03:57:53 +01:00

56 lines
1.7 KiB
CMake

if(NOT LIBUSB_FOUND)
pkg_check_modules (LIBUSB_PKG libusb-1.0)
find_path(LIBUSB_INCLUDE_DIR NAMES libusb.h
PATHS
${LIBUSB_PKG_INCLUDE_DIRS}
/usr/include/libusb-1.0
/usr/include
/usr/local/include
)
#standard library name for libusb-1.0
set(libusb1_library_names usb-1.0)
#libusb-1.0 compatible library on freebsd
if((CMAKE_SYSTEM_NAME STREQUAL "FreeBSD") OR (CMAKE_SYSTEM_NAME STREQUAL "kFreeBSD"))
list(APPEND libusb1_library_names usb)
endif()
find_library(LIBUSB_LIBRARIES
NAMES ${libusb1_library_names}
PATHS
${LIBUSB_PKG_LIBRARY_DIRS}
/usr/lib
/usr/local/lib
)
include(CheckFunctionExists)
if(LIBUSB_INCLUDE_DIRS)
set(CMAKE_REQUIRED_INCLUDES ${LIBUSB_INCLUDE_DIRS})
endif()
if(LIBUSB_LIBRARIES)
set(CMAKE_REQUIRED_LIBRARIES ${LIBUSB_LIBRARIES})
endif()
CHECK_FUNCTION_EXISTS("libusb_handle_events_timeout_completed" HAVE_LIBUSB_HANDLE_EVENTS_TIMEOUT_COMPLETED)
if(HAVE_LIBUSB_HANDLE_EVENTS_TIMEOUT_COMPLETED)
add_definitions(-DHAVE_LIBUSB_HANDLE_EVENTS_TIMEOUT_COMPLETED=1)
endif(HAVE_LIBUSB_HANDLE_EVENTS_TIMEOUT_COMPLETED)
CHECK_FUNCTION_EXISTS("libusb_error_name" HAVE_LIBUSB_ERROR_NAME)
if(HAVE_LIBUSB_ERROR_NAME)
add_definitions(-DHAVE_LIBUSB_ERROR_NAME=1)
endif(HAVE_LIBUSB_ERROR_NAME)
if(LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
set(LIBUSB_FOUND TRUE CACHE INTERNAL "libusb-1.0 found")
message(STATUS "Found libusb-1.0: ${LIBUSB_INCLUDE_DIR}, ${LIBUSB_LIBRARIES}")
else(LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
set(LIBUSB_FOUND FALSE CACHE INTERNAL "libusb-1.0 found")
message(STATUS "libusb-1.0 not found.")
endif(LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
mark_as_advanced(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARIES)
endif(NOT LIBUSB_FOUND)